/*
 * Copyright 2016 SimplifyOps, Inc. (http://simplifyops.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.grails.plugins.metricsweb

import com.codahale.metrics.Gauge

import java.util.concurrent.Callable

/**
 * Easy way to create a gauge using a closure: new CallableGauge&lt;X&gt;({ x })
 */
class CallableGauge<T> implements Gauge<T>{
    Callable<T> callable

    CallableGauge(Callable<T> callable) {
        this.callable = callable
    }

    @Override
    T getValue() {
        return callable.call()
    }
}
